2,5-Thiophenedicarboxylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4282-31-9 |
| Product name | 2,5-Thiophenedicarboxylic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeReagent GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for 2,5-Thiophenedicarboxylic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,5-Thiophenedicarboxylic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,5-Thiophenedicarboxylic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical intermediate for synthesizing biologically active thiophene-based compounds | Introduced into the target molecular scaffold via esterification, amidation, or coupling reactions |
| Materials Science | Used to prepare conductive polymers and organic semiconductor materials | Employed as a monomer in condensation or copolymerization reactions to construct π-conjugated systems |
| Organic Synthesis | Serves as a versatile carboxylic acid building block for synthesizing complex heterocyclic compounds | The carboxyl group is utilized for decarboxylation, reduction, salt formation, or conversion to acid chlorides and other derivatives |
| Coordination Chemistry | Acts as a polydentate ligand to form stable complexes with metal ions | Coordinates to transition metals (e.g., Cu, Zn, Co) via carboxylate oxygen atoms to assemble MOFs or coordination complexes |
| Analytical Chemistry | Used as a reference standard or derivatization reagent to support mass spectrometry or chromatographic analysis of sulfur-containing compounds | Subjected to derivatization reactions with analytes prior to HPLC or GC-MS detection |
Manufacturing Quality Control of 2,5-Thiophenedicarboxylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration based on the reaction of iodine with water in a methanol-based solvent system. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750-800 C in a platinum crucible and measuring mass of non-volatile inorganic residue. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion, using plasma excitation and optical emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions on an anion-exchange column with conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 in acidic medium, followed by filtration, drying, and weighing. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated capillary tube method. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents via gas chromatography with flame ionization detection. |
| Appearance | Visual Inspection | Assessment of physical state, color, and homogeneity against established visual reference standards under controlled lighting. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine volume-based particle size distribution in dry or wet dispersion. |
| Acid Value | Acid-Base Titration | Neutralization of carboxylic acid groups with standardized NaOH solution using phenolphthalein indicator. |
| Related Substances | HPLC-DAD | Detection and quantification of structurally related impurities using diode array detection across multiple wavelengths. |
Technical Specifications of 2,5-Thiophenedicarboxylic acid
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 235–239 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 2,5-Thiophenedicarboxylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,5-Thiophenedicarboxylic acid
Safety Information of 2,5-Thiophenedicarboxylic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,5-Thiophenedicarboxylic acid
Industrial 2,5-Thiophenedicarboxylic acid Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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